You will need to do gscore every round to see how many rounds it takes to earn .01%. In my case and the case of this formula, it takes 5. If you take 2 rounds to earn .01% then you would change the 5 in the formula to a 2.

Three variables should be created automatically, if not they are:
current_GXP
rndglvl
combatgxp

Then type "gxptogo" and you will see how many estimated rounds of combat and combat hours are needed for your circle!